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14 cze 2011 · I guess you need ALTER TABLE command. Go to MySQL console and run this query: ALTER TABLE links CHANGE `id` `id` char(9) character set latin1 collate latin1_general_cs NOT NULL; This command will change type of already created column.
Table Options. table_options signifies table options of the kind that can be used in the CREATE TABLE statement, such as ENGINE, AUTO_INCREMENT, AVG_ROW_LENGTH, MAX_ROWS, ROW_FORMAT, or TABLESPACE.. For descriptions of all table options, see Section 15.1.20, “CREATE TABLE Statement”.However, ALTER TABLE ignores DATA DIRECTORY and INDEX DIRECTORY when given as table options.
The ALTER TABLE statement is used to add, delete, or modify columns in an existing table. The ALTER TABLE statement is also used to add and drop various constraints on an existing table. ALTER TABLE - ADD Column
5 cze 2023 · This MySQL Cheat Sheet provides a concise and handy reference to the most commonly used MySQL commands and functionalities. It spans a range of topics, from connecting to a MySQL server and managing database contents, to the basic syntax for table creation and modification.
The syntax to rename a column in a table in MySQL (using the ALTER TABLE statement) is: ALTER TABLE table_name CHANGE COLUMN old_name new_name column_definition [ FIRST | AFTER column_name ]
You will learn how to use the MySQL ALTER TABLE statement to add a column, alter a column, rename a column, drop a column and rename a table.
To change the name of an existing table, you use the RENAME table keyword along with the ALTER TABLE statement. Syntax: ALTER TABLE table_name RENAME TO new_table_name;
